What is the role of protein in a cell? (1)Proteins keep cells alive.
(2(Proteins give instructions to DNA.
(3)Proteins perform the functions of the cell.
(4)Proteins enable a cell to duplicate.

Select the correct answer from each drop-down menu. in an experiment, dr. travis examined the effects of calcium intake on osteoporosis, a condition that causes an increased risk of bone fractures. the amount of calcium is variable. the risk of bone fractures .

Did you know that a blue wales tongue weighs more than an elephant?

Imagine you are introducing the lac operan and the trp operon to students who have never learned about it before. complete the table to compare the similarities and differences between the two operons